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chrislu
6870eeba11
BREAKTHROUGH DISCOVERIES: ✅ Performance issue SOLVED: Debug logging was causing 6.8s delays → now 20μs ✅ Metadata v7 format partially working: kafka-go accepts response (no disconnect) ✅ kafka-go workflow confirmed: Never calls Produce API - validates Metadata first CURRENT ISSUE IDENTIFIED: ❌ kafka-go validates Metadata response → returns '[3] Unknown Topic Or Partition' ❌ Error comes from kafka-go's internal validation, not our API handlers ❌ kafka-go retries with more Metadata requests (normal retry behavior) DEBUGGING IMPLEMENTED: - Added comprehensive API request logging to confirm request flow - Added detailed Produce API debugging (unused but ready) - Added Metadata response hex dumps for format validation - Confirmed no unsupported API calls being made METADATA V7 COMPLIANCE: ✅ Added cluster authorized operations field ✅ Added topic UUID fields (16-byte null UUID) ✅ Added is_internal_topic field ✅ Added topic authorized operations field ✅ Response format appears correct (120 bytes) NEXT: Debug why kafka-go rejects our otherwise well-formed Metadata v7 response. Likely broker address mismatch, partition state issue, or missing v7 field.